********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 12 August 2021 Vol. XXXIV No. 032 ______________________________________________________________________ GENERAL INFORMATION: To receive this information electronically, contact: ser7@maia.usno.navy.mil or use MJD = Julian Date - 2 400 000.5 days UT2-UT1 = 0.022 sin(2*pi*T) - 0.012 cos(2*pi*T) - 0.006 sin(4*pi*T) + 0.007 cos(4*pi*T) where pi = 3.14159265... and T is the date in Besselian years. TT = TAI + 32.184 seconds DUT1= (UT1-UTC) transmitted with time signals = -0.1 seconds beginning 17 July 2021 at 0000 UTC Beginning 1 January 2017: TAI-UTC = 37.000 000 seconds *********************************************************************** * * * There will NOT be a leap second introduced * * in UTC at the end of Dec 2021 * * * * The US Naval Observatory's Rapid Service/Prediction Center website * * (maia.usno.navy.mil) must undergo modernization and has been * * offline since 24 October 2019. The expected completion of work and * * return of service will be no earlier than Summer of 2021. * * * * Although the Bulletin A makes several references to maia, the * * paragraph above supersedes any information contained in the * * Bulletin A text. * * * * Updated EOPs are available at NASA's Archive of Space Geodesy Data: * * https://cddis.nasa.gov/archive/products/iers * * ftps://gdc.cddis.eosdis.nasa.gov/products/iers * * Daily EOP data may be available here by 18:00 UTC, and Bulletin A * * EOP data may be available by 20:00 UTC. * * For additional information on accessing CDDIS, please refer to: * * https://cddis.nasa.gov/About/CDDIS_File_Download_FAQ.html * * * * Updated EOPs may also be available at IERS: * * https://datacenter.iers.org/eop.php * * EOP data files are uploaded directly from USNO to this site each * * day. For further information, contact the IERS directly. * * * * Users should verify results obtained from these sites; we cannot * * guarantee the integrity or timeliness of files provided at * * third-party sites. * * * * Questions and enquiries about EOPs can be emailed to the * * following address: * * usn.ncr.navobsydc.mbx.eopcp@mail.mil * * * * Distribution statement A. * * Approved for public release: distribution unlimited. * * * *********************************************************************** ________________________________________________________________________ The contributed observations used in the preparation of this Bulletin are available at . The contributed analysis results are based on data from Very Long Baseline Interferometry (VLBI), Satellite Laser Ranging (SLR), the Global Positioning System (GPS) satellites, Lunar Laser Ranging (LLR), and meteorological predictions of variations in Atmospheric Angular Momentum (AAM). ________________________________________________________________________ COMBINED EARTH ORIENTATION PARAMETERS: IERS Rapid Service MJD x error y error UT1-UTC error " " " " s s 21 8 6 59432 0.25150 .00009 0.37344 .00009 -0.138765 0.000023 21 8 7 59433 0.25230 .00009 0.37220 .00009 -0.137751 0.000023 21 8 8 59434 0.25247 .00009 0.37093 .00009 -0.136746 0.000025 21 8 9 59435 0.25190 .00009 0.36942 .00009 -0.135840 0.000030 21 8 10 59436 0.25098 .00009 0.36746 .00009 -0.135100 0.000034 21 8 11 59437 0.25028 .00009 0.36534 .00009 -0.134522 0.000033 21 8 12 59438 0.24986 .00009 0.36338 .00009 -0.134113 0.000034 _______________________________________________________________________ PREDICTIONS: The following formulas will not reproduce the predictions given below, but may be used to extend the predictions beyond the end of this table. x = 0.1336 + 0.1118 cos A + 0.0434 sin A - 0.0009 cos C - 0.0455 sin C y = 0.3582 + 0.0494 cos A - 0.0972 sin A - 0.0455 cos C + 0.0009 sin C UT1-UTC = -0.1643 + 0.00024 (MJD - 59446) - (UT2-UT1) where A = 2*pi*(MJD-59438)/365.25 and C = 2*pi*(MJD-59438)/435. TAI-UTC(MJD 59439) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-59438)**0.80 S t = 0.00025 (MJD-59438)**0.75 Estimated accuracies are: Predictions 10 d 20 d 30 d 40 d Polar coord's 0.004 0.007 0.010 0.013 UT1-UTC 0.0014 0.0024 0.0032 0.0040 MJD x(arcsec) y(arcsec) UT1-UTC(sec) 2021 8 13 59439 0.2497 0.3615 -0.13385 2021 8 14 59440 0.2498 0.3597 -0.13359 2021 8 15 59441 0.2499 0.3580 -0.13326 2021 8 16 59442 0.2500 0.3564 -0.13276 2021 8 17 59443 0.2501 0.3548 -0.13205 2021 8 18 59444 0.2500 0.3533 -0.13115 2021 8 19 59445 0.2499 0.3517 -0.13012 2021 8 20 59446 0.2498 0.3501 -0.12909 2021 8 21 59447 0.2497 0.3484 -0.12817 2021 8 22 59448 0.2495 0.3468 -0.12744 2021 8 23 59449 0.2492 0.3451 -0.12692 2021 8 24 59450 0.2490 0.3434 -0.12656 2021 8 25 59451 0.2487 0.3418 -0.12628 2021 8 26 59452 0.2483 0.3401 -0.12604 2021 8 27 59453 0.2480 0.3384 -0.12581 2021 8 28 59454 0.2478 0.3367 -0.12553 2021 8 29 59455 0.2476 0.3350 -0.12516 2021 8 30 59456 0.2474 0.3333 -0.12465 2021 8 31 59457 0.2471 0.3317 -0.12403 2021 9 1 59458 0.2468 0.3300 -0.12331 2021 9 2 59459 0.2465 0.3284 -0.12255 2021 9 3 59460 0.2461 0.3268 -0.12183 2021 9 4 59461 0.2456 0.3252 -0.12123 2021 9 5 59462 0.2451 0.3236 -0.12082 2021 9 6 59463 0.2446 0.3219 -0.12064 2021 9 7 59464 0.2440 0.3203 -0.12072 2021 9 8 59465 0.2434 0.3186 -0.12103 2021 9 9 59466 0.2428 0.3170 -0.12148 2021 9 10 59467 0.2422 0.3154 -0.12195 2021 9 11 59468 0.2415 0.3138 -0.12232 2021 9 12 59469 0.2408 0.3122 -0.12248 2021 9 13 59470 0.2401 0.3106 -0.12239 2021 9 14 59471 0.2394 0.3090 -0.12207 2021 9 15 59472 0.2386 0.3075 -0.12161 2021 9 16 59473 0.2378 0.3059 -0.12110 2021 9 17 59474 0.2369 0.3044 -0.12066 2021 9 18 59475 0.2360 0.3029 -0.12037 2021 9 19 59476 0.2351 0.3014 -0.12028 2021 9 20 59477 0.2341 0.2999 -0.12038 2021 9 21 59478 0.2331 0.2984 -0.12061 2021 9 22 59479 0.2321 0.2969 -0.12091 2021 9 23 59480 0.2311 0.2954 -0.12119 2021 9 24 59481 0.2300 0.2940 -0.12140 2021 9 25 59482 0.2289 0.2925 -0.12148 2021 9 26 59483 0.2278 0.2911 -0.12140 2021 9 27 59484 0.2267 0.2897 -0.12119 2021 9 28 59485 0.2255 0.2883 -0.12085 2021 9 29 59486 0.2243 0.2869 -0.12045 2021 9 30 59487 0.2231 0.2856 -0.12005 2021 10 1 59488 0.2218 0.2842 -0.11971 2021 10 2 59489 0.2206 0.2829 -0.11952 2021 10 3 59490 0.2193 0.2816 -0.11956 2021 10 4 59491 0.2179 0.2803 -0.11986 2021 10 5 59492 0.2166 0.2790 -0.12044 2021 10 6 59493 0.2152 0.2778 -0.12125 2021 10 7 59494 0.2138 0.2765 -0.12216 2021 10 8 59495 0.2124 0.2753 -0.12304 2021 10 9 59496 0.2109 0.2741 -0.12374 2021 10 10 59497 0.2095 0.2730 -0.12419 2021 10 11 59498 0.2080 0.2718 -0.12437 2021 10 12 59499 0.2065 0.2707 -0.12437 2021 10 13 59500 0.2049 0.2695 -0.12428 2021 10 14 59501 0.2034 0.2684 -0.12422 2021 10 15 59502 0.2018 0.2674 -0.12429 2021 10 16 59503 0.2002 0.2663 -0.12453 2021 10 17 59504 0.1986 0.2653 -0.12494 2021 10 18 59505 0.1970 0.2643 -0.12548 2021 10 19 59506 0.1953 0.2633 -0.12609 2021 10 20 59507 0.1936 0.2623 -0.12670 2021 10 21 59508 0.1919 0.2614 -0.12723 2021 10 22 59509 0.1902 0.2605 -0.12764 2021 10 23 59510 0.1885 0.2596 -0.12788 2021 10 24 59511 0.1868 0.2587 -0.12795 2021 10 25 59512 0.1850 0.2579 -0.12786 2021 10 26 59513 0.1832 0.2571 -0.12766 2021 10 27 59514 0.1814 0.2563 -0.12741 2021 10 28 59515 0.1796 0.2555 -0.12718 2021 10 29 59516 0.1778 0.2548 -0.12705 2021 10 30 59517 0.1760 0.2541 -0.12707 2021 10 31 59518 0.1741 0.2534 -0.12731 2021 11 1 59519 0.1722 0.2527 -0.12780 2021 11 2 59520 0.1704 0.2521 -0.12852 2021 11 3 59521 0.1685 0.2515 -0.12940 2021 11 4 59522 0.1666 0.2509 -0.13030 2021 11 5 59523 0.1647 0.2504 -0.13106 2021 11 6 59524 0.1627 0.2499 -0.13159 2021 11 7 59525 0.1608 0.2494 -0.13182 2021 11 8 59526 0.1589 0.2489 -0.13180 2021 11 9 59527 0.1569 0.2485 -0.13165 2021 11 10 59528 0.1549 0.2480 -0.13148 2021 11 11 59529 0.1530 0.2477 -0.13140 2021 11 12 59530 0.1510 0.2473 -0.13148 2021 11 13 59531 0.1490 0.2470 -0.13171 2021 11 14 59532 0.1470 0.2467 -0.13206 2021 11 15 59533 0.1450 0.2464 -0.13247 2021 11 16 59534 0.1430 0.2462 -0.13288 2021 11 17 59535 0.1410 0.2460 -0.13321 2021 11 18 59536 0.1390 0.2458 -0.13342 2021 11 19 59537 0.1370 0.2457 -0.13347 2021 11 20 59538 0.1350 0.2455 -0.13334 2021 11 21 59539 0.1330 0.2455 -0.13305 2021 11 22 59540 0.1309 0.2454 -0.13263 2021 11 23 59541 0.1289 0.2454 -0.13213 2021 11 24 59542 0.1269 0.2454 -0.13164 2021 11 25 59543 0.1249 0.2454 -0.13121 2021 11 26 59544 0.1228 0.2455 -0.13092 2021 11 27 59545 0.1208 0.2455 -0.13081 2021 11 28 59546 0.1188 0.2457 -0.13093 2021 11 29 59547 0.1168 0.2458 -0.13136 2021 11 30 59548 0.1147 0.2460 -0.13198 2021 12 1 59549 0.1127 0.2462 -0.13268 2021 12 2 59550 0.1107 0.2464 -0.13335 2021 12 3 59551 0.1087 0.2467 -0.13384 2021 12 4 59552 0.1067 0.2470 -0.13407 2021 12 5 59553 0.1047 0.2473 -0.13403 2021 12 6 59554 0.1027 0.2477 -0.13381 2021 12 7 59555 0.1007 0.2481 -0.13353 2021 12 8 59556 0.0987 0.2485 -0.13331 2021 12 9 59557 0.0968 0.2490 -0.13324 2021 12 10 59558 0.0948 0.2494 -0.13334 2021 12 11 59559 0.0928 0.2499 -0.13356 2021 12 12 59560 0.0909 0.2505 -0.13386 2021 12 13 59561 0.0889 0.2510 -0.13416 2021 12 14 59562 0.0870 0.2516 -0.13439 2021 12 15 59563 0.0851 0.2523 -0.13450 2021 12 16 59564 0.0832 0.2529 -0.13445 2021 12 17 59565 0.0813 0.2536 -0.13423 2021 12 18 59566 0.0794 0.2543 -0.13383 2021 12 19 59567 0.0775 0.2550 -0.13330 2021 12 20 59568 0.0757 0.2558 -0.13267 2021 12 21 59569 0.0738 0.2566 -0.13201 2021 12 22 59570 0.0720 0.2574 -0.13139 2021 12 23 59571 0.0702 0.2583 -0.13088 2021 12 24 59572 0.0684 0.2592 -0.13054 2021 12 25 59573 0.0666 0.2601 -0.13040 2021 12 26 59574 0.0648 0.2610 -0.13047 2021 12 27 59575 0.0631 0.2619 -0.13072 2021 12 28 59576 0.0613 0.2629 -0.13108 2021 12 29 59577 0.0596 0.2639 -0.13145 2021 12 30 59578 0.0579 0.2650 -0.13172 2021 12 31 59579 0.0562 0.2660 -0.13178 2022 1 1 59580 0.0545 0.2671 -0.13160 2022 1 2 59581 0.0529 0.2682 -0.13121 2022 1 3 59582 0.0513 0.2694 -0.13072 2022 1 4 59583 0.0497 0.2705 -0.13027 2022 1 5 59584 0.0481 0.2717 -0.12996 2022 1 6 59585 0.0465 0.2730 -0.12985 2022 1 7 59586 0.0450 0.2742 -0.12991 2022 1 8 59587 0.0435 0.2754 -0.13008 2022 1 9 59588 0.0420 0.2767 -0.13027 2022 1 10 59589 0.0405 0.2780 -0.13041 2022 1 11 59590 0.0391 0.2794 -0.13043 2022 1 12 59591 0.0376 0.2807 -0.13031 2022 1 13 59592 0.0362 0.2821 -0.13001 2022 1 14 59593 0.0349 0.2835 -0.12954 2022 1 15 59594 0.0335 0.2849 -0.12894 2022 1 16 59595 0.0322 0.2863 -0.12824 2022 1 17 59596 0.0309 0.2878 -0.12750 2022 1 18 59597 0.0296 0.2893 -0.12680 2022 1 19 59598 0.0284 0.2908 -0.12621 2022 1 20 59599 0.0272 0.2923 -0.12579 2022 1 21 59600 0.0260 0.2938 -0.12558 2022 1 22 59601 0.0248 0.2954 -0.12558 2022 1 23 59602 0.0237 0.2970 -0.12577 2022 1 24 59603 0.0226 0.2985 -0.12608 2022 1 25 59604 0.0215 0.3002 -0.12641 2022 1 26 59605 0.0205 0.3018 -0.12668 2022 1 27 59606 0.0194 0.3034 -0.12679 2022 1 28 59607 0.0184 0.3051 -0.12668 2022 1 29 59608 0.0175 0.3067 -0.12638 2022 1 30 59609 0.0166 0.3084 -0.12596 2022 1 31 59610 0.0157 0.3101 -0.12554 2022 2 1 59611 0.0148 0.3119 -0.12525 2022 2 2 59612 0.0140 0.3136 -0.12517 2022 2 3 59613 0.0131 0.3153 -0.12531 2022 2 4 59614 0.0124 0.3171 -0.12562 2022 2 5 59615 0.0116 0.3189 -0.12600 2022 2 6 59616 0.0109 0.3206 -0.12636 2022 2 7 59617 0.0102 0.3224 -0.12663 2022 2 8 59618 0.0096 0.3242 -0.12674 2022 2 9 59619 0.0090 0.3261 -0.12667 2022 2 10 59620 0.0084 0.3279 -0.12643 2022 2 11 59621 0.0079 0.3297 -0.12603 2022 2 12 59622 0.0073 0.3316 -0.12552 2022 2 13 59623 0.0069 0.3334 -0.12496 2022 2 14 59624 0.0064 0.3353 -0.12440 2022 2 15 59625 0.0060 0.3371 -0.12393 2022 2 16 59626 0.0056 0.3390 -0.12360 2022 2 17 59627 0.0053 0.3409 -0.12345 2022 2 18 59628 0.0050 0.3428 -0.12350 2022 2 19 59629 0.0047 0.3447 -0.12373 2022 2 20 59630 0.0044 0.3466 -0.12407 2022 2 21 59631 0.0042 0.3485 -0.12443 2022 2 22 59632 0.0041 0.3504 -0.12471 2022 2 23 59633 0.0039 0.3523 -0.12485 2022 2 24 59634 0.0038 0.3542 -0.12481 2022 2 25 59635 0.0037 0.3562 -0.12460 2022 2 26 59636 0.0037 0.3581 -0.12428 2022 2 27 59637 0.0037 0.3600 -0.12398 2022 2 28 59638 0.0037 0.3619 -0.12381 2022 3 1 59639 0.0038 0.3638 -0.12389 2022 3 2 59640 0.0039 0.3658 -0.12425 2022 3 3 59641 0.0040 0.3677 -0.12487 2022 3 4 59642 0.0042 0.3696 -0.12565 2022 3 5 59643 0.0044 0.3715 -0.12648 2022 3 6 59644 0.0046 0.3735 -0.12724 2022 3 7 59645 0.0049 0.3754 -0.12783 2022 3 8 59646 0.0052 0.3773 -0.12822 2022 3 9 59647 0.0056 0.3792 -0.12838 2022 3 10 59648 0.0059 0.3811 -0.12834 2022 3 11 59649 0.0063 0.3830 -0.12812 2022 3 12 59650 0.0068 0.3849 -0.12778 2022 3 13 59651 0.0073 0.3868 -0.12740 2022 3 14 59652 0.0078 0.3887 -0.12706 2022 3 15 59653 0.0083 0.3906 -0.12684 2022 3 16 59654 0.0089 0.3924 -0.12682 2022 3 17 59655 0.0095 0.3943 -0.12705 2022 3 18 59656 0.0101 0.3961 -0.12750 2022 3 19 59657 0.0108 0.3980 -0.12809 2022 3 20 59658 0.0115 0.3998 -0.12873 2022 3 21 59659 0.0123 0.4016 -0.12931 2022 3 22 59660 0.0131 0.4035 -0.12972 2022 3 23 59661 0.0139 0.4053 -0.12992 2022 3 24 59662 0.0147 0.4071 -0.12989 2022 3 25 59663 0.0156 0.4088 -0.12967 2022 3 26 59664 0.0165 0.4106 -0.12952 2022 3 27 59665 0.0174 0.4124 -0.12941 2022 3 28 59666 0.0184 0.4141 -0.12947 2022 3 29 59667 0.0194 0.4159 -0.12972 2022 3 30 59668 0.0204 0.4176 -0.13013 2022 3 31 59669 0.0215 0.4193 -0.13065 2022 4 1 59670 0.0225 0.4210 -0.13128 2022 4 2 59671 0.0237 0.4226 -0.13192 2022 4 3 59672 0.0248 0.4243 -0.13241 2022 4 4 59673 0.0260 0.4259 -0.13271 2022 4 5 59674 0.0272 0.4276 -0.13281 2022 4 6 59675 0.0284 0.4292 -0.13271 2022 4 7 59676 0.0297 0.4308 -0.13248 2022 4 8 59677 0.0310 0.4323 -0.13216 2022 4 9 59678 0.0323 0.4339 -0.13180 2022 4 10 59679 0.0336 0.4354 -0.13153 2022 4 11 59680 0.0350 0.4369 -0.13141 2022 4 12 59681 0.0364 0.4384 -0.13144 2022 4 13 59682 0.0378 0.4399 -0.13166 2022 4 14 59683 0.0393 0.4414 -0.13213 2022 4 15 59684 0.0408 0.4428 -0.13282 2022 4 16 59685 0.0423 0.4442 -0.13366 2022 4 17 59686 0.0438 0.4456 -0.13451 2022 4 18 59687 0.0453 0.4470 -0.13529 2022 4 19 59688 0.0469 0.4483 -0.13579 2022 4 20 59689 0.0485 0.4496 -0.13598 2022 4 21 59690 0.0501 0.4509 -0.13591 2022 4 22 59691 0.0518 0.4522 -0.13569 2022 4 23 59692 0.0534 0.4534 -0.13547 2022 4 24 59693 0.0551 0.4547 -0.13528 2022 4 25 59694 0.0568 0.4559 -0.13531 2022 4 26 59695 0.0586 0.4571 -0.13555 2022 4 27 59696 0.0603 0.4582 -0.13596 2022 4 28 59697 0.0621 0.4593 -0.13643 2022 4 29 59698 0.0638 0.4604 -0.13692 2022 4 30 59699 0.0657 0.4615 -0.13739 2022 5 1 59700 0.0675 0.4626 -0.13771 2022 5 2 59701 0.0693 0.4636 -0.13787 2022 5 3 59702 0.0712 0.4646 -0.13785 2022 5 4 59703 0.0730 0.4655 -0.13764 2022 5 5 59704 0.0749 0.4665 -0.13730 2022 5 6 59705 0.0768 0.4674 -0.13682 2022 5 7 59706 0.0788 0.4683 -0.13631 2022 5 8 59707 0.0807 0.4691 -0.13586 2022 5 9 59708 0.0826 0.4699 -0.13556 2022 5 10 59709 0.0846 0.4707 -0.13545 2022 5 11 59710 0.0866 0.4715 -0.13549 2022 5 12 59711 0.0886 0.4722 -0.13572 2022 5 13 59712 0.0906 0.4730 -0.13612 2022 5 14 59713 0.0926 0.4736 -0.13652 2022 5 15 59714 0.0946 0.4743 -0.13696 2022 5 16 59715 0.0966 0.4749 -0.13718 2022 5 17 59716 0.0987 0.4755 -0.13711 2022 5 18 59717 0.1007 0.4761 -0.13674 2022 5 19 59718 0.1028 0.4766 -0.13610 2022 5 20 59719 0.1049 0.4771 -0.13538 2022 5 21 59720 0.1069 0.4775 -0.13477 2022 5 22 59721 0.1090 0.4780 -0.13431 2022 5 23 59722 0.1111 0.4784 -0.13411 2022 5 24 59723 0.1132 0.4788 -0.13404 2022 5 25 59724 0.1153 0.4791 -0.13405 2022 5 26 59725 0.1174 0.4794 -0.13407 2022 5 27 59726 0.1195 0.4797 -0.13400 2022 5 28 59727 0.1216 0.4799 -0.13381 2022 5 29 59728 0.1237 0.4802 -0.13342 2022 5 30 59729 0.1259 0.4803 -0.13284 2022 5 31 59730 0.1280 0.4805 -0.13212 2022 6 1 59731 0.1301 0.4806 -0.13118 2022 6 2 59732 0.1322 0.4807 -0.13005 2022 6 3 59733 0.1343 0.4808 -0.12890 2022 6 4 59734 0.1365 0.4808 -0.12784 2022 6 5 59735 0.1386 0.4808 -0.12695 2022 6 6 59736 0.1407 0.4808 -0.12624 2022 6 7 59737 0.1428 0.4807 -0.12568 2022 6 8 59738 0.1449 0.4806 -0.12531 2022 6 9 59739 0.1470 0.4804 -0.12508 2022 6 10 59740 0.1491 0.4803 -0.12489 2022 6 11 59741 0.1512 0.4801 -0.12467 2022 6 12 59742 0.1533 0.4799 -0.12439 2022 6 13 59743 0.1554 0.4796 -0.12393 2022 6 14 59744 0.1575 0.4793 -0.12322 2022 6 15 59745 0.1596 0.4790 -0.12232 2022 6 16 59746 0.1616 0.4786 -0.12140 2022 6 17 59747 0.1637 0.4783 -0.12057 2022 6 18 59748 0.1657 0.4778 -0.11988 2022 6 19 59749 0.1678 0.4774 -0.11928 2022 6 20 59750 0.1698 0.4769 -0.11879 2022 6 21 59751 0.1718 0.4764 -0.11835 2022 6 22 59752 0.1738 0.4759 -0.11790 2022 6 23 59753 0.1758 0.4753 -0.11737 2022 6 24 59754 0.1778 0.4747 -0.11660 2022 6 25 59755 0.1798 0.4741 -0.11561 2022 6 26 59756 0.1817 0.4734 -0.11434 2022 6 27 59757 0.1837 0.4727 -0.11290 2022 6 28 59758 0.1856 0.4720 -0.11125 2022 6 29 59759 0.1875 0.4713 -0.10947 2022 6 30 59760 0.1894 0.4705 -0.10770 2022 7 1 59761 0.1913 0.4697 -0.10592 2022 7 2 59762 0.1932 0.4689 -0.10420 2022 7 3 59763 0.1950 0.4680 -0.10269 2022 7 4 59764 0.1969 0.4671 -0.10139 2022 7 5 59765 0.1987 0.4662 -0.10028 2022 7 6 59766 0.2005 0.4652 -0.09933 2022 7 7 59767 0.2023 0.4643 -0.09844 2022 7 8 59768 0.2040 0.4633 -0.09752 2022 7 9 59769 0.2058 0.4622 -0.09648 2022 7 10 59770 0.2075 0.4612 -0.09533 2022 7 11 59771 0.2092 0.4601 -0.09396 2022 7 12 59772 0.2109 0.4590 -0.09240 2022 7 13 59773 0.2125 0.4579 -0.09073 2022 7 14 59774 0.2142 0.4567 -0.08922 2022 7 15 59775 0.2158 0.4555 -0.08800 2022 7 16 59776 0.2174 0.4543 -0.08699 2022 7 17 59777 0.2189 0.4531 -0.08621 2022 7 18 59778 0.2205 0.4518 -0.08555 2022 7 19 59779 0.2220 0.4506 -0.08491 2022 7 20 59780 0.2235 0.4493 -0.08417 2022 7 21 59781 0.2249 0.4479 -0.08330 2022 7 22 59782 0.2264 0.4466 -0.08224 2022 7 23 59783 0.2278 0.4452 -0.08097 2022 7 24 59784 0.2292 0.4438 -0.07956 2022 7 25 59785 0.2305 0.4424 -0.07802 2022 7 26 59786 0.2319 0.4410 -0.07641 2022 7 27 59787 0.2332 0.4395 -0.07473 2022 7 28 59788 0.2345 0.4381 -0.07303 2022 7 29 59789 0.2357 0.4366 -0.07143 2022 7 30 59790 0.2369 0.4350 -0.06998 2022 7 31 59791 0.2381 0.4335 -0.06861 2022 8 1 59792 0.2393 0.4320 -0.06745 2022 8 2 59793 0.2404 0.4304 -0.06644 2022 8 3 59794 0.2415 0.4288 -0.06556 2022 8 4 59795 0.2426 0.4272 -0.06466 2022 8 5 59796 0.2436 0.4256 -0.06374 2022 8 6 59797 0.2447 0.4239 -0.06268 2022 8 7 59798 0.2456 0.4223 -0.06139 2022 8 8 59799 0.2466 0.4206 -0.05989 2022 8 9 59800 0.2475 0.4189 -0.05827 2022 8 10 59801 0.2484 0.4173 -0.05658 2022 8 11 59802 0.2492 0.4155 -0.05502 2022 8 12 59803 0.2501 0.4138 -0.05377 These predictions are based on all announced leap seconds. CELESTIAL POLE OFFSET SERIES: NEOS Celestial Pole Offset Series MJD dpsi error deps error (msec. of arc) 59416 -115.88 0.60 -9.46 0.16 59417 -115.75 0.60 -9.60 0.16 59418 -115.49 0.60 -9.61 0.16 59419 -115.29 0.75 -9.60 0.18 59420 -115.18 0.53 -9.69 0.13 59421 -115.17 0.53 -9.84 0.13 59422 -115.34 0.37 -9.86 0.08 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 59416 0.228 0.240 -0.172 0.162 59417 0.248 0.240 -0.177 0.162 59418 0.262 0.240 -0.173 0.162 59419 0.261 0.299 -0.160 0.180 59420 0.245 0.211 -0.138 0.130 59421 0.218 0.211 -0.109 0.130 59422 0.185 0.146 -0.078 0.081 The recommended software to predict celestial pole offsets can be found at and software for the calculation of the dX and dY components with respect to IAU2000A Nutation/Precession Theory can be found at the web site in Chapter 5 Section 5.5 of the IERS Conventions (2010).